Yielding of colloidal glasses

K. N. Pham; G. Petekidis; D. Vlassopoulos; S. U. Egelhaaf; P. N. Pusey; Wilson Poon

doi:10.1209/epl/i2006-10156-y

Yielding of colloidal glasses

K. N. Pham, G. Petekidis, D. Vlassopoulos, S. U. Egelhaaf, P. N. Pusey, Wilson Poon

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We studied yielding in two kinds of colloidal glasses: hard spheres at high concentrations without and with a short-range interparticle attraction induced by adding non-adsorbing polymer. Our oscillatory shear and step strain measurements reveal single and two-step yielding in these two kinds of glasses, respectively. This finding is interpreted in terms of a simple picture: the breaking of local topological constraints (cages) and the breaking of nearest-neighbour bonds.

Original language	English
Pages (from-to)	624-630
Number of pages	7
Journal	European Physical Society Letters (EPL)
Volume	75
Issue number	4
DOIs	https://doi.org/10.1209/epl/i2006-10156-y
Publication status	Published - Aug 2006

Keywords / Materials (for Non-textual outputs)

PHASE-BEHAVIOR
FLOW
TRANSITION
SCATTERING
SUSPENSIONS
MIXTURES
RHEOLOGY
DYNAMICS
SYSTEM
MODEL

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10.1209/epl/i2006-10156-y

Edinburgh Soft Matter and Statistical Physics Group: Programme Grant
Cates, M., Ackland, G., Egelhaaf, S., Evans, M., Poon, W. & Pusey, P.
EPSRC
1/10/03 → 31/03/08
Project: Research

Cite this

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title = "Yielding of colloidal glasses",

abstract = "We studied yielding in two kinds of colloidal glasses: hard spheres at high concentrations without and with a short-range interparticle attraction induced by adding non-adsorbing polymer. Our oscillatory shear and step strain measurements reveal single and two-step yielding in these two kinds of glasses, respectively. This finding is interpreted in terms of a simple picture: the breaking of local topological constraints (cages) and the breaking of nearest-neighbour bonds.",

keywords = "PHASE-BEHAVIOR, FLOW, TRANSITION, SCATTERING, SUSPENSIONS, MIXTURES, RHEOLOGY, DYNAMICS, SYSTEM, MODEL",

author = "Pham, {K. N.} and G. Petekidis and D. Vlassopoulos and Egelhaaf, {S. U.} and Pusey, {P. N.} and Wilson Poon",

year = "2006",

month = aug,

doi = "10.1209/epl/i2006-10156-y",

language = "English",

volume = "75",

pages = "624--630",

journal = "European Physical Society Letters (EPL)",

issn = "0295-5075",

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TY - JOUR

T1 - Yielding of colloidal glasses

AU - Pham, K. N.

AU - Petekidis, G.

AU - Vlassopoulos, D.

AU - Egelhaaf, S. U.

AU - Pusey, P. N.

AU - Poon, Wilson

PY - 2006/8

Y1 - 2006/8

N2 - We studied yielding in two kinds of colloidal glasses: hard spheres at high concentrations without and with a short-range interparticle attraction induced by adding non-adsorbing polymer. Our oscillatory shear and step strain measurements reveal single and two-step yielding in these two kinds of glasses, respectively. This finding is interpreted in terms of a simple picture: the breaking of local topological constraints (cages) and the breaking of nearest-neighbour bonds.

AB - We studied yielding in two kinds of colloidal glasses: hard spheres at high concentrations without and with a short-range interparticle attraction induced by adding non-adsorbing polymer. Our oscillatory shear and step strain measurements reveal single and two-step yielding in these two kinds of glasses, respectively. This finding is interpreted in terms of a simple picture: the breaking of local topological constraints (cages) and the breaking of nearest-neighbour bonds.

KW - PHASE-BEHAVIOR

KW - FLOW

KW - TRANSITION

KW - SCATTERING

KW - SUSPENSIONS

KW - MIXTURES

KW - RHEOLOGY

KW - DYNAMICS

KW - SYSTEM

KW - MODEL

U2 - 10.1209/epl/i2006-10156-y

DO - 10.1209/epl/i2006-10156-y

M3 - Article

SN - 0295-5075

VL - 75

SP - 624

EP - 630

JO - European Physical Society Letters (EPL)

JF - European Physical Society Letters (EPL)

IS - 4

ER -

Yielding of colloidal glasses

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Edinburgh Soft Matter and Statistical Physics Group: Programme Grant

Cite this